Home / 161,155.40-222,426.26-102,974.92

Finding the Fourth Proportional to 161,155.40, 222,426.26 and 102,974.92

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Solution

The fourth proportional to 161,155.40, 222,426.26 and 102,974.92 is: 142,125.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,155.40 : 222,426.26 = 102,974.92 : x
  2. Step 2: Convert to fraction form
    161,155.40/222,426.26 = 102,974.92/x
  3. Step 3: Cross multiply
    161,155.40x = 222,426.26 × 102,974.92
  4. Step 4: Simplify right side
    161,155.40x = 22,904,326,329.40
  5. Step 5: Solve for x
    x = 22,904,326,329.40/161,155.40
  6. Step 6: Final answer
    x = 142,125.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.